Electromagnetic control for fluid containers



May 29,` 192s. l 1,671,368

C. S. JOHANN ELEOTROMAGNEHO CONTROL 'FOR FLUID 'CONTAINERS Filed Jan. 18, 1926 Patented May 2, i928. i

CHARLES S. J 0 :a

ELECTBOMAGNETIC CONTROL FOR FLUID CONT j it, or MONTEREY PARK, CALIFORNIA, assieivon ro co. n I..

, EQU@- `lHIILIN'T C0., OF LOS ANGELES, CALIFORNQA, A CORPOTION OF CALIFORNIA..

i EBS.

Application filed January 18, 1926. Serial No. 81,971.

My present imention relates to a control i suitable for gas containers and the like operable to open the containers to allow the contents thereof to escape.

l will, in describing my invention, make particular reference to only one form of the invention and will describe this form of the invention as applied to a gas container, it being understood thatthe broader principles of the invention are not to be construed as limited to application to a container ot' any-particular type or construction nor to iii cintainer for handling any particular The device to which this application is directed is of the same general character and for the same general purposes as the device lwhich is the subject of my co-pendin'g ap. plication entitled- Fluid control device, filed December 22, 1925, Serial No. 77 ,164.

An Object of my invention is to provide a control .device of the character mentioned which is particularly simple and inexpensive of construction and which does not involve mechanical means such as catches, or the like, liable to fail lor become inoperative.

The various objects and features of my .present invention will be, best and more fully understood from the followin ldetailed description of a typical pre `erred form of the invention, in which:

i Fig. 1 is a vertical detailedA sectional view rious fluids.` I have herein shown the device applied to a typical gas container 10 provided with a neck fitting 11 having a threaded part 12 of small diameter and a threaded part 13 ofv large diameter. The container 10 is normally closed by 'a cap 14 applied to the part 12 of the fitting 11. The cap 14 is provided in its end with an opening 15 closed by a plate 16 adapted to fail 1mder a predetermined pressure in the container or to be broken or penetrated as by means of a cutteror punch.

The device provided by this invention includes, generally, a body 20 to be connected with the container 10, a -puncli or cutterl 2l for penetrating the plate`16, electromagnetic means 22 for actuating the cutter, and means 23 for manually actuating the cutter.

The body 20 may vbe connected with or to, tlie container 10-in various manners, itbeing preferred in practice to connect the body directly with the container. In the particular forni of the invention' shown in the drawings the bodyis in the form of a tube closed at its upper end by a ca 25 and internally screw threaded at its, Qwer end to fit the threaded part 13 of the fitting 11.

'lhe cutter 21 is an elongate memberpreferably -round in cross section, angularly truncated at its lower end to form a pointed end which will effectively penetrate the plate i6. Thel cutter has a central longrtudinal opening 28 communicating with lateral openingsor/ports 29 in the upper end v 'of fluid from the container when the cutter is in an actuatedf position as will be hereinafter described. The pointed end of the cutter is adapted to, enter the opening 15 in the cap to penetrate the plate 16v I preferably provide a shoulder 30 on the cutter tovengage the top of the cap and limit the extent the cutter enters the cap.

The electromagnetic means 22 provided for actuating the cutter includes a. winding 33 mounted stationary in the upper portion of the body, and a core of iron 35 operable vertically in the winding. The means can be operated by either alternating or di rect current. The cutter 21 is operatively connected with the core 35, it bein preferred that it be rigidly connected with the lower end of the core. The core is carried in the winding so that it is in alignment with the opening inthe cap, and the cutter 21 is connected to the lower end of the core to' be in position to operate throu h the opening in thecap. Inthe drawings have shown the cutter connected to the core 35 by a connectin non-magnetic material so that the core 35 is in the most advantage/dus position inthe member 39 of brass or other winding, while the cutter isl spaced below the winding in position to act on the late 16. 'lhe winding 33 may be held .tight y 1n the body between a shoulder d() and a retaining sleeve d'1. Suitable electrical connections may be made with the winding from the exterior of the body throu h binding posts 45. The core 35 is normal y yieldingly held in an upor unactuated positwn by means of a spring 46 arranged between the upper end of the winding and a head l? on the upper end of the'core. The spring 4:6 is in practice just sufhoiently strong to normally maintain the core inthe up or unactuated position. v

il`he means 23 provided for manually operatin ,the device may include a rod 50 extendlng upwardlyy through the cap 25 so that its upper end projects above the cap lwhile its lower end lengagesthe head A17. Suitable packing means in the form of a packing gland 52 or-the like, may be provided around theV rod to'prevent escape ofk huid. t

'llhe body 2O maybe provided at suitable points, for instance near its lower end portion, with openings to allow duid to escape from it, or itmay be provided with a single Sil titl

opening 60 through which the duid may be conducted by means of a suitable conduit to. any suitable point.

ln using the term tcmtter7 l mean to include any device or means which may be used in the construction provided by my invention for .penetrating or" fracturin the plate which seals the container, and l o not mean to specifically limit myself to a part or device having specically a cutting action.

.ln operation the body 20 is applied orconnected to the container l@ in the manner shown in the drawings and when the electromagnetic means is de-energized the various parts are in the position shown in Fig l of the drawings. Upon energizing of the winding 33, effected through any sort of a control, for instance through a. remote control such as a, switch or thermostat or the like, the core 35 is moved downwardly with force sufficient to cause the cutter to penetrate the plate 16 thereby opening the container allowing the fluid to escape therefrom. ln practice the parts may be proportioned so that the cutter when unactuated is spaced above the plate ljand therefore strikes the plate when the device is actuated, or they may be proportioned so that the cutter engages the plate when the device is unactuated and is therefore forced through the plate by pressure alone when the device is actuatedo litho 'winding is only temporarily onet ized the combined action of the fluid escaping from the container and the spring 4rd may return the parte to/ their normal unactuated position, end if the cutter is held in position in the opening 15 due to continued energizing of the winding, the fluid is free to escape through the opening 28 andiports 29 inthe cutter. lt is to be noted. that my invention provides a particularly simple, inexpensive construction, and that it' involves no complicated catch device or the like such as are liable to fail or become iii-operative.

i l-laving described only a typical preferred form of my invention l do not wish -to limit myself to the specific details set forth, but wish to reserve to myself any changes Ior variations that may` appear to those skilled in the art or fall within the scope of the following claims;

-laving described my invention l claim:

l. llhe` combination of a container for yfluid under pressure comprising a body having discharge member projecting therefrom, a closure for said discharge member including a sealing dish extending across the bore thereof, ya casing connected with the container and forming a chamber about said discharge member having a ilui'd `outlet, an electro-magnet supported in said casing, and having u core movable toward and from the container, and a cutter connected to one end of said magnet core and adapted to be forced through said sealing disk when the magnet is energized.

2. 'lhe combination of` a container for Huid under pressure comprising a body having a discharge member projecting therefrom, a closurefor said discharge member including a sealing disk extending across the bore thereof, a casing connected with the container' and forming a chamber about said discharge member having a fluid outlet, an electro-magnet supported in said casing, and having a core movable toward and from the container, a cutter secured to the inner end of the magnet core whereby it will be forced through the said sealing dish when the magnet is energized, and spring acting to :restore the magnet core to position.,

' 3. 'lhe combination of a container for fluid under pressure comprising a body having a discharge member projecting therefrom, a closure for said discharge member including a sealing dish extending across the bore thereof, a casing connected with xthe containerand forming'a chamber about said discharge member having a duid outlet, an electro-magnet supported in said casing and having a coremovable toward and 12o from the container, a cutter secured to the inner end of the magnet core wherebyit will be forced through the sealing dish when the magnet is energized, and a spring cooperating with an abutment on the magnet and the outer end of the body of net to ref the core to Inormal posit l., The condffution' vof n contaii ldd duid under pressure comp ng a body i lng a discharge member I' tliereme from, a closure for said discharge member including a vsealing disk extending .across the bore thereof, a casing connected with the container and forming a chamber about said discharge member having a fluid outlet, a cutter within the casing having its inner end adjacent said sealing disk, the cutter having a bore extending through its inner end and provided with a lateral opening within the casing beyond the outer end of the discharge member of the container, means on the cutter stem adapted to cooperate with means on the discharge member to limit movement of the cutter toward the container, means within the casinor for positivel forcing the cutter through the sealing dis i, and means for normally vholding said cutter mpelling means lin normal position.

- 5. The combination of a .container for fluid under pressure comprising a body having a' discharge member projecting therefrom, a closure for said discharge member including a sealing disk extending across the bore thereof. a casing connected with the container and forming a chamber about said discharge member vhaving a fluid outlet, a cutter Within the casing having its inner end ladjacent said sealing disk, the cutter having a bore extending through its inner end and provided with a lateral'opening within the casing beyond the outer end of the discharge member of the container, means on the cutter stem adapted to cooperate with means on the discharge member to limit movement of the cutter toward the from, a closure for said discharge memberA including a sealing disk extending across the bore thereof, a casing connected with the y container and forming achamber about said discharge member having a fluid outlet, a cutter Within thecasing having its inner end adjacentsaid sealing disk, the cutter having a bore extending through its inner' end and provided with a lateral opening Within the casing beyond the'outer end of the discharge member of the container, means-on the cutter stem betweenthe inner end -thereof and the lateral o ening from the bore for cooperating wit means on the discharge member of the container to limit inward movement of the cutter," means Within the casing beyond the cutter adapted to force the cut ter through the. sealing disk, and means for normally holding said cutter impelling means in normal position.

In witness that I claimthe foregoing I have hereunto subscribed my name this'8th day of Jan., '1926.

catas s; JOHANN. 

